Utah Code Ann. § 63G-6a-1205
(2) An applicable rulemaking authority:
(b) may not make rules that permit the use of a contract:
(3) A procurement officer, the head of an issuing procurement unit, or a designee of either, may not use a type of contract, other than a firm fixed price contract, unless the procurement officer makes a written determination that:
(c) the use of a specified type of contract, other than a firm fixed price contract, is in the best interest of the procurement unit, taking into consideration the following criteria:
(ii) the difficulty of estimating performance costs at the time the contract is entered into, due to factors that may include:
(4) Contract types that, subject to the provisions of this section and rules made under this section, may be used by a procurement unit include the following:
(h) a contract that includes one of the following construction delivery methods:
(5) Except as it applies to a change order, a procurement unit may not enter into a cost-plus-percentage-of-cost contract, unless:
(6) A procurement unit may not enter into a cost-reimbursement contract, unless the procurement officer makes a written determination that:
(a)
(b) the proposed contractor's accounting system: